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w. RIKIRK. STEAM BOILER.

(No Model.)

No. 279,395. Patented June 12,1883.

UNITED STATES PATENT OFFICE.

V. HANSON KIRK, OF FORT SCOTT, KANSAS, ASSIGNOR OF ONE-HALF TO V. J. 'MOORE, OF SAME PLACE.

STEAM-BOILER.

I SPECIFICATION forming part of Letters PatenfNo. 279,395, dated June 12, 1883.

3 Application filed March 27, 1883: (No model.)

To all whom it may concern.-

Be it known that I, W. RANSON KIRK, of Fort Scott, in the county of Bourbon, and in the State of Kansas, have invented certain new and useful. Improvements in Steam-Boilers; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a perspective view of the shell of aboi'l er constructed in accordance with myimproved method, a portion of said shell being broken. away to show the interior of the same.

I 5 Fig. 2 is a like view of the tubular section separated from said shell and Fig. 3 is a diminished vertical longitudinal section of said parts combined, showing a modification in the means employed for uniting the same.

Letters of like name and kind refer to like parts in each of the figures.

The design of my invention is to enable fiueboilers to be easily and thoroughly cleaned and repaired and to this end it consists in the con- 2 5 struction of the various parts of the boiler and their combination with each other, substantially as and for the purpose hereinafter specified.

In the annexed drawings, A represents the shell of a boiler, of usual external form, to or upon the upper side of which is attached a steamdome, B. The ends of said shell are open, and'within each is secured a ring, 0 or D, the first of which rings has an external di- 3 5 ameter considerably less than that of said second ring, D.

Fitted against and secured to the inner face of the ring 0 is a head, E, which has such diameter as to permit of its insertion through 40 the ring D. Said head E is preferably secured in place by means of threaded studs e, that are secured within and project from the same, and are adapted to pass through corresponding openings, 0, formed within said ring 0, and to receive upon their outer ends nuts 5 but, if desired, bolts may be substituted for said studs, and passed from within outward through openings provided in each of said parts. Asecond head, F, is in a like manner fitted upon and secured to the outer face of the ring D, said head having such increase of diameter over the head E as to adapt it to the larger opening which is to be closed. The heads E and F form flue-sheets, and receive any desired number of fines, G, which are relatively arranged as desired, and are secured at their ends within. said heads by any of the wellknown methods, and are preferably placed in position after the latter are firmly bolted to place. The joints between the heads E and F and the rings (1 and D are preferably formed by elastic gaskets in order-that they may be easily. broken and reformed; but any desired form or kind of packing may be employed for such purpose.

lVhen it is desired to cleanse or repair the boiler, the fastenings of the heads E and F are removed, and the entire flue-section withdrawn through the ring D, the interior diameter of which latter permits of the ready pas- 7o sage of said head E and the fines G, after which each part of said boiler is easy of access, and can be readily cleansed or repaired.

In Fig. 3 is shown a means for connecting the head F to the shell in case of such expansion of the fines as to render difficult the maintenance of a tight joint between said parts.

In such event a flange, H, is secured to the outer side of the shell A, and from thence extends outward and forward so as to produce a concave front face, to the outer edge of which is riveted a plate or head, I, that is provided with an opening which corresponds in diameter to the interior of the ring D. Said head F is now bolted to said plate I, to accommodate which the fines G are made somewhat longer, producing substantially the same boiler as before. As thus constructed it will be seen that the diameter of the plate I permits of a considerable amount of springing to accommodate 0 the longitudinal expansion of the fines Gwithout endangering the joints atthe front end of the boiler.

Having thus fully set forth the nature and merits of my invention, what I claim as new 5 1s-- Thehereinbefore-desoribedboiler,consisting In testimony that I elaim'the foregoing I of the shell 'A, provided With the end rings, (1 have hereunto set my hand this 27th day of and D the flues G,- unit-edby means of the March, 1883.

headsE and F, theflange H, and the annular \V. BANS ON KIRK. plate I, all constructed and combined to oper- Vitnesses: ate inthe manner and for the purpose sub: GEO. S. PRINDLE,

stantially as specified. HENRY HAZARD. 

